iii
Safety Precautions
WARNING
Do not use this device in an environment with conductive pollution, or with dry non-
conductive pollution which can become conductive due to condensation, etc. Otherwise,
problems such as tracking phenomena may damage parts, resulting in fire.
Make sure that the frame ground terminal is properly grounded (100 Ω max.) before
connecting the controller to the measurement target or to external control circuits.
Be sure to check that the device has been correctly wired before turning on the power.
Incorrect wiring of this device may cause device failure and also lead to a dangerous accident.
Before removing, mounting, or wiring the device, be sure to turn off the power to this device
and any connected devices. Otherwise, there is a danger of electric shock.
Do not touch electrically charged parts such as the power terminals. There is a danger of
electric shock.
Do not disassemble this device. There is a danger of electric shock or device failure.
To prevent electrical shock, the main unit of this product must be installed in a location that is
only accessible to people with appropriate knowledge about electrical safety. Install the main
unit inside a control panel that cannot be opened without the use of a key or tool.
Also, before touching electrically charged components such as the input terminal block for
AC power, be sure to turn off the power. After checking that the voltage has dropped, work
carefully to prevent electrical shock. Always keep the cover on the power input terminal
block. Otherwise, there is a danger of fire or electric shock.
CAUTION
Use this device within the operating ranges given in the specifications (for temperature,
humidity, voltage, vibration, shock, mounting direction, atmosphere, etc.). Otherwise, there
is a danger of fire or device failure.
Wire this device correctly by using the wiring method, power, and installation method
specified in this user’s manual. Otherwise, there is a danger of fire, electric shock, or device
failure.
Do not allow wire clippings, metal shavings, water, etc., to enter the case of this device. There
is a danger of fire or device failure.
Firmly tighten the terminal screws to the torque listed in the specifications. Insufficient
tightening may cause fire or electric shock.
Do not use unused terminals as relay terminals. There is a danger of fire, electric shock, or
device failure.
If the lithium battery used in this device is packaged together with it (installed) and
transported by air or ship, be sure that it is transported in accordance with the IATA DGR/
IMDG Code.
Do not block the ventilation holes. There is a danger of fire or device failure.
